[ci] Add timeout to each job avoiding zombie process (#8886)

.github/workflows/backend.yml

@@ -41,6 +41,7 @@ jobs:
   build:
     name: Build
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - uses: actions/checkout@v2
         with:

.github/workflows/e2e.yml

@@ -32,6 +32,7 @@ jobs:
   build:
     name: E2E-Build
     runs-on: ubuntu-latest
+    timeout-minutes: 20
     steps:
       - uses: actions/checkout@v2
         with:
@@ -66,6 +67,7 @@ jobs:
     name: ${{ matrix.case.name }}
     needs: build
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     strategy:
       matrix:
         case:
@@ -139,6 +141,7 @@ jobs:
   result:
     name: E2E
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     needs: [ e2e ]
     steps:
       - name: Status

.github/workflows/frontend.yml

@@ -41,6 +41,7 @@ jobs:
   build:
     name: Build
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 20
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest ]

.github/workflows/py-ci.yml

@@ -40,6 +40,7 @@ env:
 jobs:
   lint:
     name: Lint
+    timeout-minutes: 15
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -55,6 +56,7 @@ jobs:
           python -m tox -vv -e lint
   pytest:
     name: Pytest
+    timeout-minutes: 15
     needs: lint
     runs-on: ${{ matrix.os }}
     strategy:
@@ -76,6 +78,7 @@ jobs:
           python -m tox -vv -e code-test
   doc-build:
     name: Docs Build Test
+    timeout-minutes: 15
     needs: lint
     runs-on: ubuntu-latest
     steps:
@@ -92,6 +95,7 @@ jobs:
           python -m tox -vv -e doc-build-test
   verify-local-ci:
     name: Local CI
+    timeout-minutes: 15
     needs:
       - pytest
       - doc-build

.github/workflows/unit-test.yml

@@ -39,6 +39,7 @@ jobs:
   unit-test:
     name: Unit Test
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - uses: actions/checkout@v2
         with: